Revert "Added Devise and Active Admin for authentication and for initial sys admin screens (eventually replaced with cleaner tech director view)"
Removed initial authentication commits

This reverts commit 9751246fe69e1d7366945f27303112aa2e260018.
Revert "Merge branch 'seeds' of github.com:codeforamerica/ticket-to-ride into student_list"
Reverting
This reverts commit 9f5fb82040d09bc60eba25feba8696ea42bce7d8, reversing
changes made to 7f39edd5c0b3efa6a65ceeaa63a5c2136eb4d133.
Removed DS_Store from intial authentication commits